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Principal Applications Engineer, 3DIC SI/PI

Synopsys
October 23, 2026
Full-time
On-site
Sunnyvale, California, United States
$184,000 - $276,000 USD yearly
EDA Jobs, Level - Senior

Job Title

Principal Applications Engineer, 3DIC SI/PI

Role Summary

Customer-facing applications engineer focused on signal integrity (SI), power integrity (PI), and advanced packaging for 3D IC and heterogeneous integration designs. The role runs multi-physics simulations, troubleshoots customer designs, and translates field problems into product feedback.

Experience Level

Senior level. The posting lists a minimum of 2 years of hands-on experience in 3D IC and advanced packaging design or analysis.

Responsibilities

Core responsibilities include customer engagements, simulation work, technical support, and feeding product roadmaps with field insights.

  • Engage with new and existing customers to understand SI/PI and advanced packaging challenges and demonstrate tool-based solutions in their design context.
  • Run multi-physics simulations using tools such as HFSS, SIwave, Q3D, Ansys, or Clarity to validate performance and guide evaluations.
  • Provide technical support: set up models, interpret results, and optimize customer workflows for 3D IC and advanced packaging designs.
  • Collaborate with product management and R&D to relay customer insights and help prioritize feature development.
  • Travel to customer sites roughly 25% of the time for onsite evaluations, training, and technical reviews.
  • Build and deliver technical presentations, application notes, and proof-of-concept demonstrations tied to real customer scenarios.
  • Monitor industry trends in SI, PI, and thermal analysis for advanced packaging and communicate relevant findings internally and externally.

Requirements

Must-have technical skills, customer experience, and travel availability. Nice-to-have items listed separately.

  • Must-have: Minimum 2 years hands-on experience in 3D IC and advanced packaging design or analysis.
  • Must-have: Proficiency with at least one simulation tool (HFSS, SIwave, Q3D, Ansys, or Clarity) and ability to set up, run, and interpret multi-physics simulations.
  • Must-have: Strong working knowledge of signal integrity and power integrity principles, including transmission-line effects, crosstalk, PDN analysis, and resonance.
  • Must-have: Demonstrated ability to work directly with customers in evaluations, support, or training contexts; strong presentation and communication skills.
  • Must-have: Willingness and ability to travel to customer sites approximately 25% of the time.
  • Nice-to-have: Experience with thermal or electrothermal analysis to broaden the range of customer problems you can address.

Education Requirements

Bachelor's or Master's degree in Electrical Engineering, Electronics Engineering, or a related field (as stated in the posting).


About the Company

Company: Synopsys

Headquarters: Mountain View, California, USA

Synopsys is a leading company in electronic design automation (EDA) and semiconductor IP solutions. It provides tools and services for designing and verifying complex semiconductor devices and systems. The company plays a pivotal role in the semiconductor industry, helping engineers innovate and deliver higher-quality products faster. Synopsys is committed to advancing technology standards and offers a range of software and hardware solutions to its clients globally.

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Date Posted: 2026-10-20